Feed-water heater.



PATENTBD JULY 5, 1904.

E. R. GUSTAVUS.

FEED WATER HEATER.

APPLICATION FILED JAN.15, 1904.

2 SHEETS-"SHHET l` N0 MODEL.

WM a@ No. 764,457. PATENTED JULY 5, 1904.

E. R. GUSTAVUS.

FEED WATER HEATER.

I. APPLIATION FILED JAN. 15, 1904. N0 MODEL. 2 SHBBTS-SHBET 2.

nononooo UNITED STnTEsN patented July e, 1904.

PATENT OEEICE.

IRNST R. GUSTAVUS, OF OSHKOSH, WISCONSIN, ASSIGNOR TO RELIANCI BOILER WORKS, OF OSHKOSI-I, WISCONSIN, A CORPORATION.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 764,457, dated July 5, 1904. Application filed January l5, 1904. Serial No. 189,182. (No model.) i i To all whom if neu/,y concern.'

Be it known that I, ERNST R. GUsTAvUs, a

citizen of the United States, residing at Oshkosh, in the county of Winnebago and State of Wisconsin, have invented new and useful Improvements in Feed -Vater Heaters, of which the following is a specification.

My invention relates to feed-water heaters for steam-boilers, and is adapted to boilerarches having a forward or front extension, called a Dutch oven. Y

The objects of my invention are, first, to provide a water-jacket steel top for the oven, and, second, to provide a means of heating the water over the grates before it enters the boiler.

In the accompanying drawings, Figure l represents a side elevation of the boiler and arch. Fig. 2 represents a front View, and Fig. 3 a plan View, of my invention.

Similar letters and numerals refer to similar parts in each view.

A represents the front wall, B B the side walls, and C the rear wall, of the Dutch oven.

D represents the grates.

A cast-iron front E is usually provided, having the doors e e above the grate for stolting and the lower doors e e leadingto the ash-pit.

F represents the smoke-stack, and Cr the boiler.

H represents the feed-water heater, resting horizontally upon the walls A B B and forming a top to the Dutch oven. It consists of the bottom plate 1, curved upwardly at the front and rear ends Q 8 and riveted to the top plate 4 and the side plates 5 5. A feature of my invention is the construction and seaming of these plates. The seams to the side plates rest upon and are protected by the side walls B B, and the seams to the top plate are on top away from the action of the heat, so that none of" the seams can burn out. The upwardly-curved front and rear ends 2 3 present an unbroken surface to the action of the heat from the fire-box. Especially is this so of the rear end, where the heat is most intense. Stay-bolts /t /t L, 6to., are provided, connecting the top and bottom plates to give strength and rigidity to the heater. A

.I represents the inlet water-pipe connecting with the boiler-pump and leading into the front of the heater.

J J are outlet-pipes leading from theV rear portion of heater into the lower part of the boiler, through which water and steam pass from the heater into the boiler.

K K are return-pipes leading from the upper part of the boiler to the front portion of the heater. The water circulates through the whole boiler and heater.

L represents an opening or feed-hole extending entirely through the heater to adapt the heater to furnaces that are fed with sawdust or other material from the ltop. opening' is closed when not feeding by the plate M.

By means of my invention the water is heated before entering the boiler without additional fuel, and a water-jacket top is provided for the Dutch oven. Steam is actually made in the heater, and the hot water is permitted to circulate between and through both boiler and heater.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a feed-water heater, a combustionchamber, a horizontally-disposed water-chamber having a bottom plate flanged upwardly to meet a cap-plate therefor, a cap-plate secured to said flanged portion by vertically-projected rivets passing through said cap-plate and said fiange, a flanged thimble projected vertically through and riveted to said bottom and cap plates, a supply-pipe leading to said watercharnber, a conduit leading through the capplate to the lower portion of the boiler, and a second or return conduit from the upper portion of the boiler to said chamber.

2. In a feed -water heater, a combustionchamber, a horizontally-disposed water-chamber supported upon the vertical walls of said combustion-chamber, said chamber having a bottom plate of upwardly-flanged, pressed, steel, a cap-plate connected with the fiange of saidbottom plate, a thimble projected vertically through said bottom plate and said capplate, a supply-pipe leading to said chamber, a conduit from the upper portion of the chamber to the lower part of a boiler, and a conduit forming a return-passage from the upper part-of the boiler to said chamber.

3. In a feed-Water heater, a Water-chamber having its bottom, and other of its Walls, comprising a continuous bent-up sheet of metal, a cap-plate riveted to the upturnedy flange of the bottom portion, a thimble projected vertieally through said bottom and cap plate, a combustion-chamber supporting said chamber ERNST R. GUSTAVUS.

Witnesses:

A. R. WATERHOUSE, JOHN PRATSCH. 

